Nikon R1C1 Wireless Close-Up Speedlight System
| Guide Number | 33' / 10.06 m at ISO 100 (24 mm Position) | 
|---|---|
| Angle of Coverage | 78° | 
| Recycle Time | Approx. 5 to 6 Seconds | 
| Exposure Control | Nikon i-TTL | 
| Secondary Illumination | None | 
| Wireless Operation | Optical Pulse  Up to 66' / 20 m (Commander, Optical Slave)  | 
|---|---|
| Wireless Channels | 4 | 
| Wireless Groups | 3 | 
| Internal Power | 1 x CR123A | 
|---|
| Mount | Shoe Mount (Controller), Lens Mount (Flash) | 
|---|---|
| Lens Compatibility | 52mm/62mm/67mm/72mm/77mm Filter Threads (via Included Adapter Ring) | 
| Dimensions (W x H x D) | 3.1 x 3.0 x 2.2" / 7.9 x 7.6 x 5.6 cm | 
| Weight | 4.2 oz / 119.1 g | 
| Package Weight | 7.25 lb / 3.29 kg | 
|---|---|
| Box Dimensions (LxWxH) | 13.15 x 10.85 x 8.6" | 

